技术中心

【英文篇名】 Application of the solid phase increasing method in simulation of soil charge and discharge processes 【作者中文名】 余延顺; 马最良; 姚杨; 【作者英文名】 By Yu Yanshun★; Ma Zuiliang and Yao YangHarbin Institute of Technology; Harbin; China; 【作者单位】 哈尔滨工业大学; 【文献出处】 暖通空调, Hv 固相率; 固相增量法; 数值模拟; 【英文关键词】 soil charge and discharge; solid phase factor; solid phase increasing method; numerical simulation; 【摘要】 在土壤蓄冷与释冷过程中,系统周期性地从土壤吸热和向土壤排热,盘管周围的土壤随之发生周期性的冻融变化。详细介绍了固相增量法模型并将它应用于模拟土壤蓄冷与释冷的相变过程,初步分析了土壤蓄冷、释冷的运行特性。运用该模型解决了土壤冻融相变过程中非线性迭代的振荡问题,加快了迭代收敛速度。 【英文摘要】 With the heat absorbing and releasing from or to the soil during the soil charge and discharge process, the phase change of soil freezing and thawing around the pipes occurs periodically. Presents the solid phase increasing method in detail and applies it to simulate the phase change process. Analyses the operation performance of soil charge and discharge. This method solves the problem of nonlinear iterative oscillation successfully and expedites the convergence velocity. 【基金】 国家自然科学基金资助项目(编号:50378024)